4 papers
Helical Current of Propagating Dirac Electrons and Geometric Coupling to Chiral Environments
Ju Gao, Fang Shen
We show that a propagating Dirac electron with intrinsic spin generically carries a real--space helical conserved current, even in the absence of orbital angular momentum. Using ex…
Angular--Momentum--Resolved Aharonov--Bohm Coupling Energy
Ju Gao, Fang Shen
We present an angular--momentum--resolved energetic formulation of the Aharonov--Bohm (AB) response for a confined Dirac electron based on two gauge--invariant interaction function…
Electron Wave-Spin Qubit
Ju Gao, Fang Shen
As a continuation of our earlier investigations into electron wave--spin~\citep{GaoJOPCO22,EntropyEvaSpin2024}, we analyze the electron spin and its qubit in a cavity by treating t…
Evanescent Electron Wave Spin
Ju Gao, Fang Shen
This study demonstrates the existence of an evanescent electron wave outside both finite and infinite quantum wells by solving the Dirac equation and ensuring the continuity of the…